Abraham staffer and peter staffer



A. 6L P. STAFFER.

Flour Cooler.

lPatented 1.1.1615, 1869.

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ABRAHAMI STAFFER AND PETER STAFFER, OF SALT CREEK,

INDIANA.

Letters Patent No. 91,381, lated June 15, 1869.

IMPROVED FLOUR-COOLER.

T11-@Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern Be it known that we, ABRAHAM STAFFER and PETER AS'rnrnnn, of Salt Greek, in the county of Porter, and State of Indiana, have invented a new and useful Improvement in Flour-Cooler; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to. make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to an improvement in maohines' for cooling flour in the process of manufacturing the same, whereby the operation4 is more thoroughly and speedily performed than by the old method. The invention consists in arranging a series of revolving arms on different doors or platfbrms, whereby the flour is moved to and from the centre on the dit'- ferentfloors, and manipulated in such a manner that the cooling is completed very expeditiously.

Figure l represents a vertical section of the cooler through the line :I: :r of iig. 2.

Figure 2 is a horizontal section of fig. 1, through the line y y.

Similar letters of reference indicate corresponding parts.

This cooler consists of a cylindrical casing, A, with an upper and a lower head, Bv O, ot' any desired size and proportions.

D, E, and F, represent stationary doors with suitable apertures through them, for the passage of the our.

Gis a central vertical shaft, which revolves in the heads G B, which shaft is provided with a transverse arm for each floor, and one also for the bottom head C.

` The length of these arms corresponds with the diameter of the casing A, having play sufficient to allow them to freely revolve therein. They are marked, respectively, h, Yi., j, and k.

On the underside of each of these arms, conveyerwings o are arranged, as seen i'n the drawing.

lhe flour is admitted through the aperture p in the top head, as indicated by the arrow, and falls on the door D.

The wings o, on the arxnh, are arranged so as to move or carry the iiour to the central aperture q, through which it drops on to the door E.

On this door the flour is moved, by the wings o, on the arm i from the centre to the outside, so that it drops on to the door F below, through one or more apertures r.

0n the door F the our is again moved from the outside, where .it has fallen, to the central aperture S, through which it drops on tothe bottom head O, where it is moved, by the wings on the arm k, to the outside again, and is discharged from the cooler .through one or more apertures t, as seen in the drawing, and indicated by the arrow.

0n the outer end of each of the arms which move the flour toward the centre, there is a V-shaped con veyer, for more readily discharging the iionr, as seen at u u.

It will thus be seen that the fiour is kept in constant motion, and is made to travel over a large space in passing through the cooler.

The flour is thus rapidly cooled by being passed from one door to another, and moved alternately back and.

'over the floors.

By this arrangement, the cooling of the flour for a large mill is confined to a space very small when compared with the room or apartment usually devoted to that purpose.

'We claim as new, and desire to secure by Letters Patent- 'lhe arrangement of the floors D E F, having openings alternatelyv at the centre and periphery, and the arms h i j k, having the wings o inclined in opposite directions alternately, the arins i Ic having end wings u, all operating as described, to discharge the Hour from one door to another through the openings q fr s t, for the purpose specified.

The above specification of our invention signed by us, this 5th day of October', 1868.

A. STAFFER. I. STAFFEB. Witnesses:

J. R. MILLAR, I. N. Benson. 

